Home / 42,529.10-63,793.68-19,128.20

Finding the Fourth Proportional to 42,529.10, 63,793.68 and 19,128.20

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Solution

The fourth proportional to 42,529.10, 63,793.68 and 19,128.20 is: 28,692.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,529.10 : 63,793.68 = 19,128.20 : x
  2. Step 2: Convert to fraction form
    42,529.10/63,793.68 = 19,128.20/x
  3. Step 3: Cross multiply
    42,529.10x = 63,793.68 × 19,128.20
  4. Step 4: Simplify right side
    42,529.10x = 1,220,258,269.78
  5. Step 5: Solve for x
    x = 1,220,258,269.78/42,529.10
  6. Step 6: Final answer
    x = 28,692.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.